FR714293A - Sonde aérienne automatique à ondes sonores - Google Patents
Sonde aérienne automatique à ondes sonoresInfo
- Publication number
- FR714293A FR714293A FR714293DA FR714293A FR 714293 A FR714293 A FR 714293A FR 714293D A FR714293D A FR 714293DA FR 714293 A FR714293 A FR 714293A
- Authority
- FR
- France
- Prior art keywords
- sound wave
- automatic sound
- wave aerial
- probe
- aerial probe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000523 sample Substances 0.000 title 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
- G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
- G01S15/12—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR714293T | 1930-07-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR714293A true FR714293A (fr) | 1931-11-10 |
Family
ID=9086666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR714293D Expired FR714293A (fr) | 1930-07-09 | 1930-07-09 | Sonde aérienne automatique à ondes sonores |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR714293A (fr) |
-
1930
- 1930-07-09 FR FR714293D patent/FR714293A/fr not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR737715A (fr) | Oscillographe électronique à image plane | |
| FR714293A (fr) | Sonde aérienne automatique à ondes sonores | |
| FR748642A (fr) | Sonde aérienne automatique à ondes sonores | |
| FR695239A (fr) | Diffuseur | |
| FR709646A (fr) | Système radio-transmetteur à ondes tournantes | |
| FR704953A (fr) | Projecteur d'ondes | |
| FR716363A (fr) | Perfectionnements aux signaux et enseignes à réflexion | |
| FR714993A (fr) | Tube de rontgen | |
| FR726122A (fr) | Sonde cesophagienne flexible pour ruminants | |
| FR716218A (fr) | Perfectionnements aux récepteurs de signaux | |
| FR720012A (fr) | Microphone à bande | |
| FR691592A (fr) | Phonographe | |
| FR720541A (fr) | Génératrice à ondes courtes | |
| FR39554E (fr) | Dispositif de tamisage | |
| FR705593A (fr) | Disque de phonographe | |
| FR725084A (fr) | Disque de phonographe | |
| FR748293A (fr) | Orgue à ondes | |
| FR693609A (fr) | Perfectionnements aux alésoirs expansibles | |
| FR37969E (fr) | Instrument musical à fonctionnement automatique | |
| FR723341A (fr) | Sonnerie automatique fonctionnant à heures fixes | |
| FR715750A (fr) | Machine volante | |
| FR721459A (fr) | Machine volante | |
| FR753551A (fr) | émetteur à ondes égales | |
| FR38101E (fr) | Diffuseur | |
| FR709161A (fr) | Enregistreur de courbes photographiques |